<?php $form = \yii\widgets\ActiveForm::begin(['enableAjaxValidation' => true,'enableClientValidation' => true,'options'=>['class'=>'form-validate']]); ?>
    <table width="100%" class="table-form">
        <tr>
            <th class="zx-goods-table" style="width: 40%">选择开始上课的课次</th>
            <td><?=\yii\helpers\Html::dropDownList('lesson_id',null,$lessonLists,['class'=>''])?></td>
        </tr>
    </table>
    <div class="m_top_10 btn" style="display: none">
        <?= \yii\helpers\Html::submitButton('提交', ['class' => "button", 'id' => 'dosubmit']) ?>
    </div>
<?php \yii\widgets\ActiveForm::end(); ?>